#include <iostream>
using namespace std;
int n,r[100001],ans=-1,lab[100001];
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>r[i];
        lab[r[i]]++;
    }
    for(int i=1;i<=100000;i++)
        ans=max(ans,lab[i]);
    cout<<ans<<endl;
    return 0;
}
//Easy Problem
